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Bordetella pertussis on charcoal agar
microscope picture gram-negative rods

Bordetella pertussis

Bordetella pertussis on charcoal agar. Very small colonies after 5 days of cultivation in aerobic atmosphere, 35°C.

Bordetella pertussis is the causative agent of pertussis or whooping cough. Pertussis is an infection of the respiratory system and characterized by a “whooping” sound when the person breathes in. Worldwide in 2000, according to the WHO, around 39 million people were infected annually and about 297,000 died. The infection occurs most with children under the age of one when they are unimmunized or children with faded immunity, normally around the age 11 through 18.
Text: Wikipedia
Gram-negative, non-motile, coccobacillus.